Two pinkflowered plants were crossed to other What are follo

Two pink-flowered plants were crossed to other. What are following probabilities? A red-flowered each the plant. The first three plants examined will be white A plant will be either white or pink A group of six plants contain three pinks, and two whites

Solution

ANS: B. the first three plants examined will be white.

Explanation:

A is result of a cross between red (RR) and white (rr) colored four o’ clock plant can produce a pink (R ) colored flowers.

In co-dominance both alleles contribute to the phenotype.

When the F1 generation plants (Pink flowers Rr) is self-fertilized (Rr X Rr) then both the parental phenotypes (Red (RR) and white (rr) flowered plants) reappeared in F 2 generation.

The F 2 generation flowers are 1/4 Red (RR), 1/4 White (rr) and 1/2 Pink (Rr).